ICD-11 classes
12 Diseases of the respiratory system
CB41 — Respiratory failure
CB41.2 — Respiratory failure, unspecified as acute or chronic
CB41.20 — Respiratory failure, unspecified, Type I

ICD-11 CB41.20 — Respiratory failure, unspecified, Type I

This is when the PaCO2 may be normal or low. It is typically caused by a ventilation/perfusion (V/Q) mismatch; the volume of air flowing in and out of the lungs is not matched with the flow of blood to the lungs. The basic defect in type 1 respiratory failure is failure of oxygenation

The diagnosis includes nothing.

The diagnosis excludes nothing.

It has no clarifying diagnoses.